Mortar and concrete composites with recycled plastic: A review

Science and Technology of Materials Pub Date : 2018-12-01 DOI:10.1016/j.stmat.2018.11.003

I. Mercante, C. Alejandrino, J.P. Ojeda, J. Chini, C. Maroto, N. Fajardo

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引用次数: 49

Abstract

Valorization of waste plastic as concrete aggregates has become an opportunity. Some advantages are plastic waste recycling, consumption reduction of natural aggregates and improvement of concrete properties. This paper presents a review on addition of recycled plastic waste to cement composites and influence on their properties. Forty five international papers were selected from scientific peer-reviewed journals. The critical items analyzed were: plastic characteristics, mix proportion design and concrete properties. The last item includes fresh and hardened concrete properties, durability performance and thermal conductivity. Although some properties were negatively influenced by the plastics, this paper focuses on the variables that mitigate these effects. The improvement of insulation properties with plastic is widely analyzed, but further research is recommended. As conclusion, application of plastic waste would be useful on both, technical and environmental dimensions and this paper could be used as a helpful tool for studying and designing mortars and concrete composites with recycled plastic.

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再生塑料砂浆与混凝土复合材料研究进展

废塑料作为混凝土骨料的增值已成为一个机会。其优点是塑料废物回收利用，减少天然骨料的消耗，改善混凝土性能。综述了再生塑料在水泥复合材料中的掺入及其对复合材料性能的影响。45篇国际论文从同行评议的科学期刊中选出。分析的关键项目有:塑性特性、配合比设计和混凝土性能。最后一项包括新混凝土和硬化混凝土的性能、耐久性和导热性。虽然某些性能受到塑料的负面影响，但本文的重点是减轻这些影响的变量。用塑料改善绝缘性能已被广泛分析，但建议进一步研究。综上所述，废塑料的应用在技术和环境方面都是有益的，本文可以作为研究和设计再生塑料砂浆和混凝土复合材料的有用工具。

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Science and Technology of Materials

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